Heating-drum



(No Model.) I

P. B. FOX.

. HEATING DRUM, No. 325,405. Patented Sept. 1, 1885.

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UNITED STATES PATENT @rricn.

PERLEY E. FOX, OF MARLOXV, NEW HAMPSHIRE.

HEATiNG-DRUM.

SPECIFICATION forming part of Letters Patent No. 325,405, dated September 1,1885.

Application filed March 30, 1885. (No model.)

To all whom it may concern:

Be it known that I, PERLEY E. Fox, a citizen of the United States, residing at Marlow, in the county of Cheshire and State of New Han1pshire,have invented certain new and useful Improvements in Heating-Drums; and I do declare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

This invention relates to an improvement in heatingdrums to be attached to stoves, furnaces, or other heating arrangements; and it consists of a double sheet-iron cylinder having a crescentshaped draft-passage, constructed and arranged as hereinafter more fully described.

In the annexed drawings, illustrating the invention, Figure 1 is a front elevation of the device. Fig. 2 is a vertical section. Fig. 3 is aplau view of ailanged coupling piece or head which connects the cylindrical drum with the conical pipes at either end. Fig. 4 isa crosssection on the line x of Fig. 2, and Fig. 5 is a vertical section on y g of Fig. 3.

Like letters of reference designate like parts in the several views.

A represents a double cylinder or drum, to both ends of which, by means of flanged coupling pieces or heads 0, are secured conical caps or pipes 13 B, which serveto connect the heater with the stove, stove-pipe, or other heating arrangement below, and with the stove-pipe above. The drum A is made by first constructing a simple cylinder of a single piece of sheet metal riveted together at the juncture, next flattening this cylinder until the two sides are only about an inch apart, and then bending up the flattened cylinder into a double drum until the edges are brought to within two inches (more or less) of touching. Thus a crescent'shaped draft-passage, Z1, is formed, and an interior chamber, D, inclosed by said draft-passage, which communicates with the air in the room by the space (about two inches, more or less) which intervenes between the edges of the draft-passage. The whole surface of the original drum is thus brought into contact with the heat passing upward from the source of heat below, and also with the atmosphere of the room, and irradiation can take place at every point. The drum A may be made of any desired size,and acorrespondingly large amount of heat will be thrown out therefrom.

O designates the heads or flanged couplingpieces,which serve to unite the drum A and the conical pipes B and B, and which also form heads for the interiorinclosure, D. This coupling-piece is shown in Figs. 3 and 5. The latter,beiug avertical section of the lower head or coupler, indicates the various parts of its construction. a is the outer periphery of the head 0, and is a rim or collar dividing asheetmetal ring into two flanges, c c, which fit tightly, one into the-drum and the other into the conical piece. The coupling-piece has a crescent-shaped opening, I), which allows it to fit over the drait-passage, and the plate 0 forms the head'of the interior chamber, 1). The coupling-pieces O, drum A, and conical pipes 13 B are all securely fastened together by rivets.

The pipes BB are preferably made of conical form, and are but tapering pieces of pipe to connect drum with collar of the stove or stovepipe. By this contrivance a drum of large size is reduced to a size and form which may be readily applied to any size stove-pipe without disfiguring the appearance of the device.

If desired, the open side of the drum may be covered by a sheet-iron jacket, E, (shown by dotted lines in Fig. 1,) neatly fitted upon it, a space being left open at each end through which the air will pass into and from the drum,

thereby producing a strong current of heated air, which will rapidly heat and equalize all the air in the room.

The heater is to be attached to the collar of the stove or pipe in the ordinary way. The heat then will pass upward through the crescent-shaped openings in the head G into the similar-shaped draft-passage, whence it radiates into the room, and also into chamber D, and thence into the room; then it passes upward and outward into the chimney.

It is evident, also, that my heater-drum may be attached to astove-pipe near to or remote from the stove. Thus the heater can be con- Veniently located in a room at some distance 2. In a heater-drum, the combination, with from the stove itself, and such room will in a drum having crescent-shaped draft-passage this way be heated with facility. and interior chamber, of a jacket or plate 1 5 Having thus described my invention, what adapted to cover a part of the opening into 5 I claim as new, and desire to secure by Letters said chamber to create a draft, substantially,

Patent, is as and for the purpose described.

1. A heater-drum consisting of the combi- In testimony whereof Iaffix my signature in nation of the crescent-shaped drum A, having presence of two witnesses. interiorheating-chamber, D, the flanged coup- PERLEY E. FOX.

10 ling-pieces O O, the conical pipes B B, and Witnesses:

the jacket E, substantially as shown and de HIRAM BLAKE,

scribed. IRA W. RUssELL. 

